Is colorectal cancer highly hereditary?

Is colorectal cancer hereditary? Many people do not know much about colorectal cancer. Colorectal cancer is a common malignant tumor of the gastrointestinal tract, second only to gastric cancer and esophageal cancer. It seriously endangers the health and life of patients. Let's take a look at whether colorectal cancer is hereditary.

Is colorectal cancer hereditary?

Once colorectal cancer enters the late stage, more obvious symptoms may appear, but some symptoms are not specific and are related to the location of the cancer.

1. The main symptoms of right-sided colon cancer are indigestion, fatigue, loss of appetite, diarrhea, constipation, or alternating constipation and diarrhea, abdominal distension, abdominal pain, abdominal tenderness, abdominal mass, and progressive anemia. The location of the mass varies with the location of the lesion. The mass of cecal cancer is located in the right lower abdomen, the mass of the ascending colon is located in the right abdomen, the mass of the hepatic flexure of the colon is located in the right upper abdomen, and the mass of the transverse colon is located near the umbilicus. In addition, there may be fever, weight loss, and complications such as perforation and localized abscess. At this time, the lesion has entered the most advanced stage.

2. Left-sided colon cancer is prone to stenosis and progressive intestinal obstruction because the sigmoid colon has a narrow intestinal lumen and forms an acute angle with the rectum. It is often accompanied by stubborn constipation and an increase in the frequency of bowel movements. Since the obstruction is mostly in the lower part of the sigmoid colon, vomiting is mild or absent, while abdominal distension, abdominal pain, bowel sounds and intestinal patterns are obvious. When the tumor ruptures, the stool may be stained with blood or mucus. The proximal intestinal tract of the obstruction may form ulcers due to persistent expansion, ischemia and hypoxia, and may even cause perforation. Large amounts of blood and abdominal abscesses may also occur.

3. Rectal cancer is mainly manifested by increased frequency of bowel movements, thinner stools, blood or mucus, and tenesmus. Since the cancer can invade the sacral plexus nerves, severe pain may occur. If the bladder is involved, symptoms such as frequent urination, painful urination, urgent urination, and hematuria may occur. Cancer invasion of the bladder can form a bladder-rectal fistula. Rectal cancer can also cause intestinal obstruction.

4. Anal canal cancer is mainly manifested by blood in the stool and pain. The pain is aggravated during defecation. When the cancer invades the anal sphincter, there may be fecal incontinence. Anal canal cancer can metastasize to the inguinal lymph nodes, so enlarged and hard lymph nodes can be felt in the groin.

Expert Tips: Is colorectal cancer hereditary? After reading the above introduction, you have a better understanding of colorectal cancer. Experts say that colorectal cancer seriously endangers the health and life of patients. Patients must pay attention to their diet, go to regular hospitals for treatment, and actively cooperate with doctors to avoid delaying the disease!